public void GetEdges(int x, int y, List<GridEdge> edges, float[,] weights = null)
{
int edge = Edges[x, y];
if (edge == 0) return;
for (int i = 0; i < 8; i++)
{
int xi = x + D8.OFFSETS[i, 0];
int yi = y + D8.OFFSETS[i, 1];
if (xi < 0 || xi > Width - 1) continue;
if (yi < 0 || yi > Height - 1) continue;
if ((edge & 1 << i) == 0) continue;
var e = new GridEdge(x, y, xi, yi);
if (weights != null)
e.Weight = weights[x, y] + weights[xi, yi];
edges.Add(e);
edges.Add(new GridEdge(x, y, xi, yi));
}
}
public List<GridEdge> GetAllEdges(float[,] weights = null)
{
List<GridEdge> edges = new List<GridEdge>(EdgeCount);
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
int edge = Edges[x, y];
if (edge == 0) continue;
for (int i = 0; i < 8; i++)
{
int xi = x + D8.OFFSETS[i, 0];
int yi = y + D8.OFFSETS[i, 1];
if (xi < 0 || xi > Width - 1) continue;
if (yi < 0 || yi > Height - 1) continue;
if ((edge & 1 << i) == 0) continue;
var e = new GridEdge(x, y, xi, yi);
if (weights != null)
e.Weight = weights[x, y] + weights[xi, yi];
edges.Add(e);
}
}
}
return edges;
}
